Matrix forgot to allocate its data: fixed.
Array: small fixes and added the RefArray that references data from
another Array.
PhaselessCrossover: implementation set up but needs to be tested.
Increased maximum number of buckets per window as it distorted
measurement
EffectiveFilterLength now also takes the original filter lengths into
account (filters might also dimish each others outputs).
Implemented a Filter, based on coefficients.
Added some convenience to CoefficientFilter.